That game looks sexy, but unfortunately it also looks not realistic at all. And I think that is a shame for a WW2 tank simulation.
Go try WW2 Online or wait for the Karkhov tank game which will be released sometime in 2010.

Yes, reminds me of the early days of WWII Online when there were no spawn limits and massive tank battles were possible. However, this game, if it offers no infantry, artillery, or anti-tank weapons, doesn't seem like it will have much depth.